Unless you can prove to me that not ONE religion has ever changed, revised old doctrines etc. then you can't support that statement.

The important difference is in frequency and timing. Science has, is, and will always be undergoing change. It is designed to do so. Religion is most deffinately NOT. There may be times when some of the Dogma is changed or re-interpreted, but it is infrequent, and not planned for. It is also generally met with extreme resistance.